Cardamine macrocarpa is known from the Chisos Mountains, Brewster County.

The characters by which var. texana is said to differ from var. macrocarpa are artificially drawn, and the style length, presence or absence of indumentum on the pedicels, and degree of flexuosity of the raceme rachises do not correlate and can vary within a given area. For these reasons, we do not recognize infraspecific taxa in Cardamine macrocarpa.